Machine for making sewing ribs for the insoles of footwear



Nov. 3, 1959 v. A. sHERBRooK 2591 1,214 MACHINE FOR MAKIN EWING R FOR THE INsoLEs FooTwE Filed May 31. 1957 2 Sheets-Sheet 1 VICTOR ASHERBR K ATTORNEY v v; A. sHERBRooK MACHINE FOR MAKING SEWING RIBS FOR THE Nov. 3, 1959 INSOLES OF FOOTWEAR 2 Sheets-Sheet 2 Filed May 5l, 1957 INVENTOR VICTOR A. SHERBROOK ATTORNEY United 2,911,214 Patented *Nom 13,' '1959 inventionrelates `to a machine for longitudinally foldingan elongated continuously moving tapel to provide, when cut intoappropriate lengths, sewing'ribs-for-insoles each of which comprises a narrow elongated tape longitudinally-folded aplurality-'of along spaced parallel lines forming a plurality of jparallel layers.,y one of which is adapted to be secured to the insole of a shoe, and the other of which is 'adapted to be leldlriiore oiiles'serectV 'tof provide the sewing'rib for vthe iisole.

.Themachine of the 'present invention comp-ises'ne'ans `for feeding a tlattape'longitudinallyjsaid attapebeing previously supplied with adhe's'ivcfat'ohe side only thereof, means; comprising a first fixture initiallyv folding over `a narrow edge portion'ofithentape sowthat two adh'sively supplied surfaces meet, while leaving the major portion of the tape ilat, there being subsequent pressing means to nish the cementing of the vnarrow folded-over edge portion; said pressing means comprising a pair of rollers, the tape passing through the nip 4thereof and the contour of the rollers being such as to pre-crease the previously at unfolded portion of the tape, preparatory -to `a final folding operation by means of a second xture which not only again folds over the folded edge portion onto an adhesive portion of the tape, but also reversely folds the opposite edge portion of the previously at unfolded major portion of the tape, resulting in la narrow tape having two edge-connected uncemented parts, one part being thin and supplied with adhesive at the expo-sed side thereof, and the other being thicker and without eX- posed adhesive, means for pressing the same to finish the cementing of the several layers o-f the thicker fold, and reeling means for reeling the folded tape preparatory to use in applying to insoles for footwear.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a perspective View illustrating the machine;

Fig. 2 is a side elevational View on an enlarged scale of the operating parts of the machine;

Fig. 3 is a front elevational view on an enlarged scale, looking in the direction of arrow 3 in Fig. 2;

Figs. 4 and 5 `are sectional views, taken on the respective lines of Fig. 3;

Fig. 6 is a section on line 6 6 of Fig. 2;

Fig. 7 is an elevational view, looking -in the direction of arrow 7 in Fig. 2 on an enlarged scale;

Fig. 8 is an enlarged section on line 8-8 of Fig. 7;

Fig. 9 is a section on line 9--9 of Fig. 2;

Fig. 10 is a diagrammatic View illustrating the action of the rolls;

Figs. 11 and l2 are sectional views illustrating the application of the folded tape sewing rib to an insole of a shoe; v Fig. 13 is an enlarged elevational View, looking in the direction of arrow 13 in Fig. 3; and

Fig. 14 is a perspective View on an enlarged .scale similar to Fig. 7 but with the tape not shown.

In carrying out the present invention, an elongated generally'flat tape of canvas or some similar appropriate material is provided in substantially continuous lquar'itity :as on a reel 10. This tape is provided with adhesive at one side surface thereof only. The .tape isfed illustrated in Ithe drawings over an ,idler roll `.l2 and through aV fixture generally indicated at'r14. This fixture is illustrated in Figs. 2 and 13 and comprises in general a lsubstantially at plate 16 over which the adhesive free side of the tapefpasses, plate 16 being provid-ed with an elongated angej 18 overlying the same in closely adjacent but spaced relationship. Flange 18 lterrninatesat its edge 20 (see Fig. 3) -and al narrower angeZZ isturnedup and overthe supporting plate 1 6 as perhaps best shown in Fig. ,5,v sothat the canvas'strip is automatically guided toy be rolled -or turned over on its edge as at 2,4, leaving the tixtureV 14 with a'narrow portion 26 folded over upon the still flat, majorportion' of the tape. The adjacent surfaces ,-ofthe tape Vand the folded edge part arecemented and pressed .together by the rollers 28 and 30.

.I VVTheftape. in folded formA passes between the nip of -the pair, of rollers 28 and Sii which arepivotallymounted on swinging supports?. and'34 (see Fig. lll).I Each roller is'uprovided 'with its own shaft and these-shafts areY connected 'together by gearsfill which may ybe-driven as for instance from shaft 36 by .va-beltV from another s liaftz- 44 in-turn driven by a belftl`46rfroni asoui-ce of to be described hereinafter.

The tape in folded form proceeds downwardly and as shown in Figs. 7 and 8 proceeds through a second fixture which is generally indicated by the reference numeral 48. This fixture comprises a connected pair of generally U- shaped tape guiding members mounted on a supporting plate or .the like 50. As shown in Figs. 8 and 14, these members are both substantially U-shaped and `are indicated `generally at 52 and S4 and are connected by a strap 56. The U-shaped guidevmembers 52 and 54 are located substantially facing oppositely .to each other in spaced relation and may be conveniently formed by folding over the edges of a flat sheet of material and then slitting the same at 58 as shown in Fig. 14. Then the edge forming the U-shaped member 52 is bent slightly inwardly and superimposed with relation to the edge which forms the U-shaped member 54.y The cut at 53 forms a guiding edge member 60 which is one of `the legs of the U-shaped member 52.

The roller 28 in cooperation with roller 30 are provided with a special form periphery which includes an annular indentation 62 with Ian annular crown 64 on roller 28 and corresponding crown 66 and indentation 618 on lroller 30, so that the tape will appear as shown between these two rollers as in Figs. 6 and 10. This construction forms a pre-creasing effect at 70. When the tape approaches the open end of 4the second fixture, it slides easily into the two U-shaped members which at the upper end of the xture are substantially parallel .and in line with each other.

However, as the tape proceeds, it is easily folded as indicated yin Fig. 8, yaided by the pre-creasing effect, and the pre-folded edge 26 is received in the U-shaped member 54 while the U-shaped member 52 causes a superimposed fold 72 and a reverse fold 74. This occasions the resulting tape which appears as in Fig. 12, `after it has gone through the pressure rolls 76 and 78, which are provided with mating peripheral edges tending to press the adhesive faces of the tape together.

The tape as shown in Figs. 1l and 12 is formed of four layers which are cemented at surfaces 80 and 82 but not at 84, and this results in a tape which essentially comprises two longitudinal parts, ie; a thin part 86 and a thicker partk 08 having an extended edge fold 90. The

under side of layer 86 is provided with adhesive by which it is cemented to the insole 92 and then when stitching 94 is passed through the extending edge 90 and the insole, the thicker layer -88 is caused to pivot upwardly as shown in Fig. l1 in position for use as a sewing rib for the insole.

The roll of folded tape 96 is mounted upon the appropriate machine for application to the insole and may be cut Where desired by the operator when sutcient sewing rib has been applied to the insole as called for by the manufacturer of the shoe.

The present machine causes the folded tape to be reeled onto a roll 96 to which it is guided by means of presser rolls 98 after passing over an idle roll 10. A doctor blade 102 mounted on a bracket 104 is provided for scraping roll 78 to free the same of any adhesive that might cling thereto. The rollers 76 and 78 are mounted in the same manner as rollers 28 and 30 and are driven from the shaft 44 which directly drives roller 76. The respective rollers may be adjustably mounted for dierent degrees of pressure by means such as rods 106 provided with adjustable springs S for resiliently urging the rollers in sets toward each other.

The individual xtures 1-4 and 48 may be mounted in any convenient way as on brackets 110, 112 or the like, in turn mounted on the machine base, and it is believed that the operation of the machine will be clear from the above whereby a flat tape is substantially continuously passed through the apparatus to provide the folded sewing rib of Fig. 12 for use on an insole as above described.

AHaving thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, other-wise than as set forth in the claims, but what I claim is:

1. A machine for making plural folded sewing ribs from substantially continuous tape having a side surface thereof supplied with an adhesive comprising means to travel the tape endwise and spool the same in folded condition, a fixture comprising a flat tape supporting plate and a curved edge flange thereon having an exit end superposed relative to the plate to fold over an edge portion of the tape, presser means at the exit end of the fixture to press the folded over edge portion to the remainder of the tape and secure the same thereto by means of the adhesive, and a second xture including a tape supporting plate, an edge tlange thereon guiding the folded over edge into close proximity to the next adjacent longitudinal portion of the tape, and an opposite edge flange on the second fixture guiding the unfolded edge of the tape into a reverse fold superimposed on the other folds.

2. The machine of claim 1 including tape p'ressing means located at the exit end of the second fixture.

3. The machine of claim l wherein said presser means includes mating irregular contours on the pressing means to pre-crease the tape along subsequent fold lines.

References Cited in the file of this patent UNITED STATES PATENTS 474,716 Beale et al. May 10, 1892 482,153 Barrett Sept. 6, 1892 1,003,023 Ziegler Sept. 12, 1911 1,604,056 Lorenz Oct. 19, 1926 Y FOREIGN PATENTS 19,2411- Great Britain Aug. 30, 1915 

